Multi-Solvers
The tier above single solvers. Each of these 200 workflows chains several solvers into one guided, end-to-end analysis — the way real engineering, science, and finance problems are actually solved. Every step runs live in your browser.
Structural & Geotechnical (20)
Bridge Designer
Full span from beam to foundation
6 solvers chained →
Multi-Story Frame
Seismic frame design
4 solvers chained →
Steel Connection Designer
Bolted & welded joints
3 solvers chained →
Roof Truss Analyzer
Members, buckling, deflection
3 solvers chained →
Crane Boom Check
3D frame + fatigue
3 solvers chained →
Pedestrian Bridge Vibration
Modes & comfort
2 solvers chained →
Reinforced Slab Designer
Flexure, shear, deflection
3 solvers chained →
Wind Load Package
Pressure to base shear
3 solvers chained →
Cantilever Balcony
Deflection & capacity
2 solvers chained →
Prestressed Girder
Losses & fatigue
3 solvers chained →
Shallow Foundation Designer
Bearing & settlement
2 solvers chained →
Retaining Structure Suite
Pressure, sliding, bearing
3 solvers chained →
Slope Stability Kit
Static & seismic
3 solvers chained →
Pile Foundation
Bearing & friction
2 solvers chained →
Excavation & Shoring
Earth pressure & dewatering
2 solvers chained →
Liquefaction Assessment
Seismic soil failure
2 solvers chained →
Dam Seepage
Flow & uplift
2 solvers chained →
Embankment Settlement
Consolidation & stability
2 solvers chained →
Tunnel Support
Ground load & lining
2 solvers chained →
Site Grading & Runoff
Drainage & detention
2 solvers chained →
Fluids & Energy (20)
Airfoil & Wing Lab
Lift, drag, flow
3 solvers chained →
Pump & Piping System
Friction, curve, cavitation
2 solvers chained →
HVAC Duct Designer
Flow, fan, noise
3 solvers chained →
Wind Turbine Yield
Airfoil to annual energy
3 solvers chained →
Heat Exchanger Sizing
Flow & heat transfer
3 solvers chained →
Nozzle & Jet
Compressible flow & shock
3 solvers chained →
Compressor Map
Cycle & efficiency
2 solvers chained →
Pipeline Network
Flow & routing
2 solvers chained →
Cooling Fan Selection
Curve & noise
2 solvers chained →
Sail / Hydrofoil
Lift & righting
2 solvers chained →
Building Energy Model
Envelope to annual energy
4 solvers chained →
Solar PV System
Yield, storage, payback
3 solvers chained →
Engine Thermo Lab
Cycle & efficiency
2 solvers chained →
Refrigeration Cycle
COP & sizing
2 solvers chained →
Insulation Optimizer
R-value & payback
2 solvers chained →
Solar Thermal Collector
Irradiance & losses
2 solvers chained →
Geothermal Heat Pump
Ground exchange & COP
2 solvers chained →
Battery Thermal Management
Heat & cooling
2 solvers chained →
District Heating
Loss & efficiency
2 solvers chained →
Waste-Heat Recovery
ORC power
3 solvers chained →
Electronics & Power (20)
Filter + Amplifier Chain
Filter, op-amp, Bode
4 solvers chained →
Power Supply Designer
Rectify, filter, ripple
3 solvers chained →
RF Front End
LNA to link budget
3 solvers chained →
Sensor Signal Chain
Amp, ADC, noise
3 solvers chained →
Motor Driver
Motor, PID, bias
4 solvers chained →
Audio Amplifier
Gain, filter, power
3 solvers chained →
Oscillator Designer
Feedback & stability
2 solvers chained →
PCB Thermal
Dissipation & derating
1 solvers chained →
EMI Filter
Attenuation & compliance
2 solvers chained →
Class-D Amp
PWM, filter, THD
2 solvers chained →
Power System Analyzer
Three-phase to power factor
2 solvers chained →
Load Flow Study
Bus voltages & losses
2 solvers chained →
Fault Analysis
Short-circuit & protection
2 solvers chained →
Grid Frequency Control
Droop & inertia
2 solvers chained →
Microgrid Designer
Solar, battery, dispatch
3 solvers chained →
EV Charging Impact
Load & transformer
3 solvers chained →
Transmission Sag
Thermal & clearance
2 solvers chained →
Reactive Power Comp
Power factor & voltage
1 solvers chained →
Renewable Integration
Variability & storage
3 solvers chained →
Substation Grounding
Fault current & safety
1 solvers chained →
Controls & Robotics (10)
Robot Arm Controller
Kinematics + control
3 solvers chained →
Drone Autopilot
Dynamics, PID, estimation
4 solvers chained →
Mobile Robot Navigation
Drive, plan, estimate
3 solvers chained →
Cart-Pole Control Design
Balance & robustness
2 solvers chained →
Servo Tuning Kit
Motor, PID, Bode
3 solvers chained →
DSP Pipeline
Sample, FFT, filter
3 solvers chained →
State Estimator
Sensor fusion
1 solvers chained →
Motion Profile Generator
Kinematics to torque
2 solvers chained →
Vibration Control
Modes & active control
2 solvers chained →
Line-Follower Robot
Sensor, PID, drive
2 solvers chained →
Data & Statistics (20)
ML Model Trainer
Train, cluster, reduce
4 solvers chained →
Classification Pipeline
Reduce then classify
2 solvers chained →
Clustering Workbench
k-means & PCA
2 solvers chained →
Feature Engineering
PCA & selection
2 solvers chained →
Deep Net Playground
Backprop & overfitting
2 solvers chained →
Recommender System
Similarity & ranking
2 solvers chained →
Anomaly Detection
Distribution & threshold
2 solvers chained →
Time-Series Forecaster
Regress, Fourier, Kalman
4 solvers chained →
NLP Basics Kit
Embed & classify
2 solvers chained →
Image Processing Chain
Convolve & transform
2 solvers chained →
Regression Workbench
Fit, test, bootstrap
4 solvers chained →
A/B Test Suite
Power & significance
3 solvers chained →
Bayesian Workbench
Prior to posterior
3 solvers chained →
Survey Analysis
Sampling & intervals
2 solvers chained →
Quality Control (SPC)
Chart & capability
3 solvers chained →
DOE Optimizer
Design & response
2 solvers chained →
Meta-Analysis
Effect & heterogeneity
2 solvers chained →
Reliability Analysis
Weibull & MTBF
2 solvers chained →
Bootstrap Uncertainty
Resampling CI
2 solvers chained →
Causal Inference
Confounders & effect
2 solvers chained →
Finance & Quant (20)
Portfolio Builder
Frontier, MC, VaR
3 solvers chained →
Retirement Planner
Growth & drawdown
3 solvers chained →
Mortgage Optimizer
Amortize & refinance
2 solvers chained →
Fixed-Income Suite
Price, duration, risk
2 solvers chained →
Dividend Growth Model
Discount & value
2 solvers chained →
Rebalancing Strategy
Drift & cost
2 solvers chained →
College Savings
Growth to target
2 solvers chained →
Emergency Fund Planner
Risk & target
2 solvers chained →
Real-Estate Analyzer
Cash flow & IRR
2 solvers chained →
FIRE Calculator
Savings to freedom
2 solvers chained →
Options Desk
Price, Greeks, payoff
3 solvers chained →
Volatility Surface
Smile & calibration
2 solvers chained →
Risk Dashboard
VaR & stress
2 solvers chained →
Delta Hedging Sim
Greeks & P&L
2 solvers chained →
Pairs Trading
Cointegration & signal
2 solvers chained →
Factor Model
Exposures & attribution
2 solvers chained →
Credit Risk
Default & loss
2 solvers chained →
Monte Carlo Pricer
Paths & payoff
2 solvers chained →
Yield-Curve Trading
Duration & carry
1 solvers chained →
Backtester
Signal, Sharpe, drawdown
2 solvers chained →
Physics & Quantum (20)
Orbital Mechanics Lab
Kepler to N-body
4 solvers chained →
Projectile Range Kit
Drag & optimization
1 solvers chained →
Pendulum Lab
Simple to chaotic
2 solvers chained →
Collision Analyzer
Momentum & energy
1 solvers chained →
Rotational Dynamics
Torque & precession
2 solvers chained →
Spring-Mass Systems
Modes & resonance
2 solvers chained →
Rocket Flight
Staging to orbit
3 solvers chained →
Fluid Statics Kit
Buoyancy & stability
1 solvers chained →
Wave Lab
Interference to FFT
5 solvers chained →
Chaos Explorer
Pendulum to bifurcation
3 solvers chained →
Quantum Sandbox
Box, tunnel, orbitals
4 solvers chained →
Optics Bench
Lenses to diffraction
4 solvers chained →
Laser Cavity Lab
Gain, mirror, beam
3 solvers chained →
Spectroscopy Kit
Levels & lines
2 solvers chained →
Relativity Lab
Dilation & Doppler
2 solvers chained →
Qubit Playground
Bloch & measurement
2 solvers chained →
Photovoltaic Physics
Band gap to yield
2 solvers chained →
Blackbody & Radiation
Planck & color
1 solvers chained →
Interferometer
Fringes & coherence
3 solvers chained →
Nuclear Decay Chain
Half-life to dose
3 solvers chained →
Chemistry & Materials (20)
Reaction Engineering Kit
Kinetics to titration
3 solvers chained →
Reactor Designer
Conversion & heat
2 solvers chained →
Distillation Column
VLE & stages
2 solvers chained →
pH & Buffer Lab
Titration & buffer
2 solvers chained →
Electrochem Cell
Nernst & kinetics
2 solvers chained →
Combustion Analyzer
Stoichiometry & flame
2 solvers chained →
Gas Process Kit
Compression & liquefaction
3 solvers chained →
Polymerization
Chain & properties
1 solvers chained →
Crystallization
Nucleation & yield
2 solvers chained →
Membrane Separation
Diffusion & flux
1 solvers chained →
Materials Selector
Strength to fatigue
4 solvers chained →
Heat Treatment
Cooling & hardness
2 solvers chained →
Composite Designer
Stiffness & failure
2 solvers chained →
Fatigue Life Predictor
S-N to life
2 solvers chained →
Casting & Solidification
Heat & shrinkage
2 solvers chained →
3D Printing Optimizer
Warping & strength
2 solvers chained →
Machining Parameters
Force & tool life
1 solvers chained →
Weld Design
Heat & residual stress
2 solvers chained →
Corrosion Rate
Electrochem & life
1 solvers chained →
Fracture Mechanics
Toughness & crack
2 solvers chained →
Earth & First Responders (20)
Climate Scenario Model
Energy to feedback
4 solvers chained →
Watershed & Flood Kit
Runoff & routing
2 solvers chained →
Air Quality Model
Emission to exposure
2 solvers chained →
Coastal Erosion
Waves & sediment
2 solvers chained →
Groundwater Contamination
Flow & remediation
2 solvers chained →
Solar & Wind Site
Yield & capacity
2 solvers chained →
Wildfire Risk Map
Fuel, weather, spread
2 solvers chained →
Glacier Mass Balance
Melt & retreat
2 solvers chained →
River Meander
Erosion & migration
1 solvers chained →
Carbon Footprint Suite
Emissions & offset
2 solvers chained →
Wildfire Response Planner
Spread to evacuation
4 solvers chained →
Hazmat Incident Kit
Plume to triage
2 solvers chained →
Structural Collapse
Load & search grid
2 solvers chained →
Flood Evacuation
Inundation & routing
2 solvers chained →
Active-Shooter Response
Egress & staging
1 solvers chained →
Mass-Casualty Triage
Triage to capacity
2 solvers chained →
Fireground Hydraulics
Hose to pump
1 solvers chained →
Search & Rescue Grid
Probability & coverage
2 solvers chained →
Bomb Standoff Planner
Overpressure & cordon
1 solvers chained →
Pandemic Response
Spread to capacity
3 solvers chained →
Biology & Aerospace (20)
Epidemic Response Model
SIR to triage
4 solvers chained →
Pharmacokinetics Suite
Dosing & clearance
2 solvers chained →
Neuroscience Lab
Spikes to FFT
2 solvers chained →
Population Ecology Lab
Predator-prey to drift
4 solvers chained →
Tumor Growth
Proliferation & dose
2 solvers chained →
Cardiac Rhythm
Conduction & arrhythmia
1 solvers chained →
Vaccine Strategy
Herd immunity & rollout
2 solvers chained →
Enzyme Pathway
Kinetics & flux
1 solvers chained →
Genetics Lab
Selection & drift
2 solvers chained →
Blood Flow
Vessel & shear
1 solvers chained →
Mission Planner
Staging to Lagrange
4 solvers chained →
Satellite Orbit
Elements & ground track
2 solvers chained →
Exoplanet Detective
Transit to mass
2 solvers chained →
Telescope Designer
Aperture to resolution
1 solvers chained →
Reentry Analysis
Trajectory & heating
2 solvers chained →
Interplanetary Transfer
Window & delta-v
2 solvers chained →
Star Lifecycle
H-R to fate
2 solvers chained →
Gravitational Lensing
Mass & deflection
1 solvers chained →
Launch Vehicle Sizing
Payload & staging
2 solvers chained →
Space Debris Tracker
Orbit & conjunction
2 solvers chained →
Operations & Economics (10)
Supply-Chain Optimizer
EOQ to network flow
4 solvers chained →
Facility Location
Demand & cost
2 solvers chained →
Project Portfolio
Critical path & risk
2 solvers chained →
Market Equilibrium Lab
Supply, demand, tax
3 solvers chained →
Auction Designer
Mechanism & revenue
1 solvers chained →
Pricing Strategy
Elasticity & margin
2 solvers chained →
Network Reliability
Max-flow & redundancy
2 solvers chained →
Traffic Flow Planner
Flow & signal timing
2 solvers chained →
Inventory & Demand
Forecast & safety stock
2 solvers chained →
Game-Theoretic Strategy
Nash & evolution
1 solvers chained →